Attachment plug



FIG. 1 is a front view of an attachment plug;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof, the left side view thereof being a mirror image;

FIG. 6 is a cross-sectional view taken along line 6--6 of FIG. 3 omitting internal structure;

FIG. 7 is a cross-sectional view taken along line 7--7 of FIG. 3 omitting internal structure;

FIG. 8 is a right side view thereof showing the earth terminal pin in the extended position; and,

FIG. 9 is a front and upper right perspective view thereof with the earth terminal in the extended position. 

The ornamental design for an attachment plug, as shown and described. 